{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-08T06:54:14.704","vulnerabilities":[{"cve":{"id":"CVE-2026-21521","sourceIdentifier":"secure@microsoft.com","published":"2026-01-22T23:15:57.823","lastModified":"2026-02-02T13:30:53.350","vulnStatus":"Analyzed","cveTags":[{"sourceIdentifier":"secure@microsoft.com","tags":["exclusively-hosted-service"]}],"descriptions":[{"lang":"en","value":"Improper neutralization of escape, meta, or control sequences in Copilot allows an unauthorized attacker to disclose information over a network."},{"lang":"es","value":"Neutralización incorrecta de secuencias de escape, meta o control en Copilot permite a un atacante no autorizado divulgar información a través de una red."}],"metrics":{"cvssMetricV31":[{"source":"secure@microsoft.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":4.0}]},"weaknesses":[{"source":"secure@microsoft.com","type":"Primary","description":[{"lang":"en","value":"CWE-150"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:365_word_copilot:-:*:*:*:*:*:*:*","matchCriteriaId":"3A538269-3D01-41B4-B8B1-B70D8514D336"}]}]}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21521","source":"secure@microsoft.com","tags":["Vendor Advisory"]}]}}]}